Size and weight are big decision factors when you are trying to find the ideal camera for your needs.
In this section, we are going to illustrate the Nikon P340 and Olympus TG-3 side-by-side from the front, back and top in their relative dimensions. Nikon P340 has external dimensions of 103 x 58 x 32 mm (4.06 x 2.28 x 1.26″) and weighs 194 g (0.43 lb / 6.84 oz) (including batteries). Olympus TG-3 has external dimensions of 112 x 66 x 31 mm (4.41 x 2.6 x 1.22″) and weighs 247 g (0.54 lb / 8.71 oz) (including batteries).
Below you can see the front-view size comparison of the Nikon P340 and the Olympus TG-3. Nikon P340 is 9mm narrower and 8mm shorter than Olympus TG-3 but it is also 1mm thicker.
Here is the back view size comparison of the Nikon P340 and Olympus TG-3.
Now lets look at the top view comparison of Nikon P340 and Olympus TG-3.
Weight is another important factor, especially when deciding on a camera that you want to carry with you all day.
Nikon P340 is significantly lighter (53g ) than the Olympus TG-3 which may become a big advantage especially on long walking trips.
Weather Sealing
Thanks to the weather-sealed body of the TG-3, you can use this camera with more confidence under conditions where there is risk of exposure to water and dust compared to the P340.
LCD Screen Size and Features
Nikon P340 and Olympus TG-3's LCD screens have the same diagonal size of 3.00 inches.
Unfortunately, both cameras has fixed screens so they don't tilt or flip in directions.